how many tidal harmonic coefficient are necessary?

General scientific issues regarding ROMS

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wuhe
Posts: 15
Joined: Mon Dec 22, 2008 5:29 pm
Location: national ocean techniqual centre

how many tidal harmonic coefficient are necessary?

#1 Unread post by wuhe »

hi,all!
I want to simulate the tidal current of hangzhou bay of eastchina sea at least one year, and how many tidal coefficient do i add to OBC? any hint will be appreciated!

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kate
Posts: 4088
Joined: Wed Jul 02, 2003 5:29 pm
Location: CFOS/UAF, USA

Re: how many tidal harmonic coefficient are necessary?

#2 Unread post by kate »

If you look at tidal records for that bay, you should be able to determine which ones are important there. My script always adds eight constituents - four diurnal and four semi-diurnal, but they aren't all important everywhere.

So you can add them all or find out which are the strongest and add only them, your choice.

wuhe
Posts: 15
Joined: Mon Dec 22, 2008 5:29 pm
Location: national ocean techniqual centre

Re: how many tidal harmonic coefficient are necessary?

#3 Unread post by wuhe »

thanks a lot, Kate, i have got it!

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